Question about 1996 Pontiac Grand Prix

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Car is over heating and going into the resovier. Replaced water pump, thermostate twice. Someone in this forum mentioned a spring loaded switch. However this is a 3.1 motor Pontiac Grand Prix SE two door. New heads and gaskets. Started over heating about a week after all this was replaced. Twice saw milky around oil cap no water or anti freeze. Oil is not rising.

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  • jackspag Mar 06, 2009

    Have replaced radiator cap. To the first answer is that seated or sealed? How would I test if there's a chamber plugged

  • Shadow1989 May 11, 2010

    Sounds to me like a chamber is plugged or could be that the gasket is not seated properly.

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If you have a white, milky fluid, you have moisture in the oil. No question on this. You may try retorquing the top of the engine (heads, intake, etc.). Change oil and filter. Now if this has electric motors for cooling (fans), make sure they are working. Don't overlook the obvious. Check the radiator cap. Cooling system must have pressure to function right. A bad cap could cause overheating.

Good Luck

Posted on Mar 06, 2009

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